Date: Tue, 3 Jan 2017 20:46:27 +0300 From: Slawa Olhovchenkov <slw@zxy.spb.ru> To: Jordan Caraballo <jordancaraballo87@gmail.com> Cc: freebsd-net@freebsd.org Subject: Re: Disappointing packets-per-second performance results on a Dell,PE R530 Message-ID: <20170103174627.GW37118@zxy.spb.ru> In-Reply-To: <8f637e2e-cd59-dc65-8476-30989bea516b@gmail.com> References: <8f637e2e-cd59-dc65-8476-30989bea516b@gmail.com>
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On Tue, Jan 03, 2017 at 12:35:42PM -0400, Jordan Caraballo wrote: > We recently tested a Dell R530 with a Chelsio T580 card, under FreeBSD 10.3, 11.0, -STABLE and -CURRENT, and Centos 7. > > Based on our research, including netmap-fwd and with the routing improvements project (https://wiki.freebsd.org/ProjectsRoutingProposal), > we hoped for packets-per-second (pps) in the 5+ million range, or even higher. > > Based on prior testing (http://marc.info/?t=140604252400002&r=1&w=2), we expected 3-4 Million to be easily obtainable. > > Unfortunately, our current results top out at no more than 1.5 M (64 bytes length packets) with FreeBSD, and > surprisingly around 3.2 M (128 bytes length packets) with Centos 7, and we are at a loss as to why. > > Server Description: > Dell PowerEdge R530 with 2 Intel(R) Xeon(R) E52695 CPU's, 18 cores per > cpu. Equipped with a Chelsio T-580-CR dual port in an 8x slot. > > ** Can this be a lack in support issue related to the R530's hardware? ** > > Any help appreciated! What hardware configuration? What BIOS setting? What loader.conf/sysctl.conf setting? What `vmstat -i`? What `top -PHS`? what ==== pmcstat -S CPU_CLK_UNHALTED_CORE -l 10 -O sample.out pmcstat -R sample.out -G out.txt pmcstat -c 0 -S CPU_CLK_UNHALTED_CORE -l 10 -O sample0.out pmcstat -R sample0.out -G out0.txt ====
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